72920820

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{1459}}^1$

素因数の和:1502

約数の個数: 144

約数和(自身を含む): 251657280

約数和(自身を除く): 178736460

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 17, 20, 21, 28, 30, 34, 35, 42, 49, 51, 60, 68, 70, 84, 85, 98, 102, 105, 119, 140, 147, 170, 196, 204, 210, 238, 245, 255, 294, 340, 357, 420, 476, 490, 510, 588, 595, 714, 735, 833, 980, 1020, 1190, 1428, 1459, 1470, 1666, 1785, 2380, 2499, 2918, 2940, 3332, 3570, 4165, 4377, 4998, 5836, 7140, 7295, 8330, 8754, 9996, 10213, 12495, 14590, 16660, 17508, 20426, 21885, 24803, 24990, 29180, 30639, 40852, 43770, 49606, 49980, 51065, 61278, 71491, 74409, 87540, 99212, 102130, 122556, 124015, 142982, 148818, 153195, 173621, 204260, 214473, 248030, 285964, 297636, 306390, 347242, 357455, 372045, 428946, 496060, 520863, 612780, 694484, 714910, 744090, 857892, 868105, 1041726, 1072365, 1215347, 1429820, 1488180, 1736210, 2083452, 2144730, 2430694, 2604315, 3472420, 3646041, 4289460, 4861388, 5208630, 6076735, 7292082, 10417260, 12153470, 14584164, 18230205, 24306940, 36460410, 72920820]

約数ペア:

[(1, 72920820), (2, 36460410), (3, 24306940), (4, 18230205), (5, 14584164), (6, 12153470), (7, 10417260), (10, 7292082), (12, 6076735), (14, 5208630), (15, 4861388), (17, 4289460), (20, 3646041), (21, 3472420), (28, 2604315), (30, 2430694), (34, 2144730), (35, 2083452), (42, 1736210), (49, 1488180), (51, 1429820), (60, 1215347), (68, 1072365), (70, 1041726), (84, 868105), (85, 857892), (98, 744090), (102, 714910), (105, 694484), (119, 612780), (140, 520863), (147, 496060), (170, 428946), (196, 372045), (204, 357455), (210, 347242), (238, 306390), (245, 297636), (255, 285964), (294, 248030), (340, 214473), (357, 204260), (420, 173621), (476, 153195), (490, 148818), (510, 142982), (588, 124015), (595, 122556), (714, 102130), (735, 99212), (833, 87540), (980, 74409), (1020, 71491), (1190, 61278), (1428, 51065), (1459, 49980), (1470, 49606), (1666, 43770), (1785, 40852), (2380, 30639), (2499, 29180), (2918, 24990), (2940, 24803), (3332, 21885), (3570, 20426), (4165, 17508), (4377, 16660), (4998, 14590), (5836, 12495), (7140, 10213), (7295, 9996), (8330, 8754)]